Machine for making horseshoes.



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PATENTED OCT. 10, 1905.

G. UHEHET & C. SIMON. MACHINE FOR MAKING HORSESHOES. APPLICATION FILED NOVA, 1902.

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G. CHEHET & O. SIMON.

MACHINE FOR MAKING HORSESHOES.

APPLICATION FILED NOVA, 1902.

3 SHEETS-SHEET 2.

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Wfesses lgZE ITJIE I PATENTED OCT. 10, 1905. G. OHEHET & O. SIMON.

MACHINE FOR MAKING HORSESHOES.

APPLICATION FILED NOV. 4. 1902 3 SHEETS-SHBET 3,

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GEORGES CHEHET, OF PARIS, AND CHRISTOPHE SIMON, OF ATHIS-MONS, FRANCE.

Specification of Letters Patent.

Patented Oct. 10, 1905.

A li ti fil d November 4, 1902- Serial No. 130,093.

To all whom, it may concern:

Be it known that we,GEoRGEs CHEHET,ironmaster, residing in Paris, (whose full postal address is 54: Rue de la Bienfaisance, Paris, aforesaid,) and CHRIsToPHE SIMON, manager, residing in and whose full postal address is Athis-Mons, Seine and Oise, in the Republic of France, citizens of the Republic of France, have invented certain new and useful Improvements in Machines for Making Horseshoes, of which the following is a specification.

This invention relates to machines for making horscshoes, and has for its object an improved combination of devices whereby shoes, whether of iron or steel and for all kinds of shoeing, may be continuously manufactured by machinery.

The machine successively shapes the shoe to the hoof, forms the large or small nail-holes, the counter-holes, the French or English adjustments, (curvings or bevelings,) the rounded or beveled sponges, the clips, and the raised calks in such a way that the shoes emerge from the machine ready to be put on.

Rollers furnish the bars of iron or steel divided into blanks of equal depths or thicknesses, but of different widths, and at the same time having more pronounced projections intended to form the clip. These bars are cut by shears into suitable blanks of the necessary length. Half-rounds or curves one concave and the other in relief having been formed in the two sides of the cut piece, the semiround section of the sponges is thus obtained, as well as the beveling to thirty degrees, by giving this inclination to the blank at the moment of cutting. The blanks are then heated to a white heat in a suitable separate furnace, and when thus prepared they are introduced successively one by one into the machine, which will now be described and which forms the object of the invention.

The blanks are discharged from this machine in the state of a completely-finished horseshoe with the exception of the counterholes, which are made afterward, when the shoe is cold, by means of a punch.

In the accompanying drawings, Figure l is a vertical section of the machine on the line E F of Fig. 2. Fig. 2 is a plan View, partly in section, on the line A B of Fig. 1. Fig. 3 is a vertical section on the line C D of Fig. 1 looking to the left. Figs. 4, 5, and 6 represent the lower matrix, on an enlarged scale,

in plan view, longitudinal section, and transverse section, respectively. Fig. 7 shows a plan view of the blank before being curved. Fig. 8 is a plan view, partly in section, on the line M N of Fig. 9. Fig. 9 is a partial vertical section of the piston 2 and the adjacent parts. These views, Figs. 8 and 9, show the matrix L, carrying the blank, advanced under the piston 2 and the swage-block 5 at the moment when it is about to compress the blank on .the matrix 4, while the clip-former 6 and the ring 18, carrying the punches 20, are still raised.

The machine comprises three hydraulicpressu re cylinders having three pistons 1, horizontal, and 2 and 3, vertical. The piston 1 actuates a curving-slide at for shaping the blank, the piston 2 actuates a stamping-hammer 5 for producing the ad justment,(cu rving or beveling,) and piston 3 actuates a hammer 6, called the clip-forming hammer, for forging the clips and making the nail-holes. The pistons 1, 2, and 3 are indicated in the specification and drawings as being operated by hydraulic power; but it must be understood that they might equally well be actuated by steam, electricity, or any other source of motive power by adopting suitable modifications, which are well known.

in the working of the apparatus the first piston 1 brings horizontally under the piston 2 the bending-piece 4:, which moves like a slide and on which a matrix 7 (represented on an enlarged scale in Figs. 4, 5, and 6) is mounted. This matrix is cut in such a way that it presents in intaglio the form 50 of the clip and the beveling or curvature 51 of the adjustment. It also carries a core or mold 52, which has the form of the inside of a horseshoe. Before arriving under the piston 2 the matrix 7 passes between two rollers 8, which roughly bend or shape the blank, the original form of which is shown in Fig. 7. These rollers are pressed against the blank by springs 9, which, nevertheless, allow the rollers a certain play. The piston 2 descends vertically on the matrix 7 as soon as the latter reaches the end of its course, and by means of lateral wedges 10, which press upon movable plates 11, the piston 2 compresses the arms of the horseshoe upon the internal core of the mold, and thus produces the shaping. Then, continuing its descent, it gives at the same time to the iron the beveling or curvature of the adjustment 51, Figs. 1 and 5, and, finally, for the hind shoes it forges and flattens the arms, which must be thinner than the clip or toepiece. The wedges act on the plates 11 by means of rollers 12, and springs 13, acting by expansion on rods connected to the plates 11, return the plates to their normal position as soon as the wedges 10 are raised. At the same time as the plates 11 press the lateral arms of the horseshoe at the rear two fixed plates 14 grip it at the front. It is evident in the drawing Fig. 2 that when the blank comes between the rollers 8 these rollers are forced up against the pressure of the springs 9, and the pressure of these springs presses the rollers against the blank and forces it to bond. The internal extremity of the spring 9 abuts against a disk 90, mounted on and secured to a rod 91, and the external extremity of the spring 9 bears against a fixed piece 92, attached to the frame. The horseshoe is thus blocked on all sides except as regards the projection 55, Figs. 5 and 7, left on the blank by the roller for forming the toe -piece or grip; The piston 3 then lowers a piece 6, called the clipper, onto the projection 55, intended to form the clip, which it depresses into the recess 50, reserved in the mold. The clipper may alsohave various forms, according to requirements, and its various modes of working will be hereinafter described.

The plates 11 are connected to the rods 114, on which the springs 18 are mounted and which run up the interior of the springs. The internal extremity of these springs bears against the frame of the machine and the external extremity against washers mounted on the rods. Consequently the tension of the springs has a tendency to separate the plates 11. hen the matrix which carries the shoe roughly bent by its passage between the rollers 8 is brought beneath the piston 2, it is shown in Fig. 8 that the piston 2 in descending lowers the vertical arms 10, which are terminated with wedges, and these wedges by the intermediary of rollers 12 press the plates 11 against the shoe in order to maintain it laterally against the matrix, while the piston 8 lowers the clip-hammer and forms the nail-holes. When the piston 2 rises, the springs 13 separate the plates 11 and allow the horseshoe to be moved backward. The plates 1 1- have the same object as the plates U namely, to maintain theshoe laterally against the matrix while the piston 3 lowers the clip-hammer and forms the nail-holes. The plates 1 1 are fixed, because the curved part of the shoe, which they inclose orembraee constai'itly,tendstoseparate from the center, and consequently the shoe may be brought backward, while as the plates 11 hold the inwardly-bent arms of the horseshoe it is necessary that these plates shall be separated in order that the horseshoe may be brought backward. The clipper shown at 6 is attached by two links 15 to the piston 3 and is provided with two side arms 16, which are pivoted on trunnion-pins 17. This method of mounting the clipper allows it to approach. the matrix (on a more or less rapid curve, according as the trunnions 17 are nearer to or farther away from the clipper) at the same time as itdescends vertically, and consequently at the same time as it bends down, the clip forcing it into the recess formed in the mold. In its descent the piston 3 carries with it a ring 18, which slides freely on the piston-rod 2 and is guided by it. The movement of the ring 18 by the piston 3 is produced by the arms 16 of the clipper, to which the ring 18 is connected by means of trunnions 19. The ring 18 carries punchesQO, and on being lo wcred it perforates the iron, forming nail-holes. The advantage of this arrangement is that the iron is first jammed on all sides and stamped into the desired form by the piston 2 before the perforation. By referring to Figs. 1 and 8, it will be seen that the piston 2 is prolonged toward the bottom by a rod 51, attached to it by a bolt 52. At the end of this red 51 a matrix 5 is fixed having a form to suit that of the matrix 7, mounted on piston 1, so that on the descent of the piston 2 the horseshoe is compressed between these two matrices or punches and reduced to the desired thickness. The annular part 18, which carries the punches 20 for making the nail-holes, is perforated at its center with a vertical hole, so as to allow the rod 51, which carries the matrix 5 free passage, and this matrix is lowered by the piston 2 without the part 18 moving. The part 18 is fixed by two trunnions 19 to the arms 16, pivoted at one of their ends to fixed trunnions 17 and fixed by their other ends to a hammer 6, which itself is attached to the piston 23 by links 15. It will be easily understood that the piston 3 in descending lowers the part 18, which carries the punches 20 and drives them into the horseshoe to form the nail holes. The punches 20 for making the holes called the nail-holes are fixed to the ring 18. The shoe being thus completed, the water is discharged. Immediately three other pistons 31 82, which are always under pressure, return the three first pistons 1, 2, and 3 to their original positions in the reverse order to that in which they moved for working. The piston 3 is first raised and operates the ring 18,withdrawing the punches 20 from the shoe. Then the piston 2 rises, withdrawing at the same time the wedges 10, which allow the springs 13 to move away the gripping-plates 11. and release the shoe. The piston 32 then pushes backward the slide 4:, supporting the matrix 7. It is then only necessary to replace the first blank by a new one, the first one having become a horseshoe, which is antomatically removed on reaching the end of its course.

The pistons are connected to the hydraulic compressor in the following manner: The piston 1 moves in the cylinder 100, the end of which is in communication with a pipe 101, provided, for instance, with a two-way cock 102, enabling the end of the cylinder to be placed in communication either with a pipe 103, passing to the hydraulic compressor, or with a discharge-pipe 104. In the prolongation of the piston 1, and also fixed to a block 1, there is another piston 32 of smaller diameter than the piston 1, moving in the interior of a cylinder 105, constantly in communication with the hydraulic accumulator by a pipe 106. W hen it is desired to cause the matrix 7 to advance beneath the piston 2, the end of the cylinder 100 is placed in communication with the hydraulic compressor by means of the cock 102 and pipe 103, and the piston l, which has a larger section than the piston 32, is propelled by virtue of the difi'erence of the surfaces. As soon as the end of the cylinder 100 is open to the discharge-port the piston is automatically returned by the piston 32, the cylinder 105 of which is constantly in communication with the pressure-accumulator. The same arrangement exists for the pistons 2 and 3. These pistons are respectively connected with small pistons 31 and 30. arranged in their prolongations, and the cylinders of the pistons 31 and 30 are constantly in communication with the pressure-accumulator by a common pipe 107. The piston 2 is placed in communication either with the hydraulic compressor by a two-way cock 108 and a pipe 109 or with the discharge by the cock 108 and a pipe 110. It is the same for the piston 3 by means of a two-way cock 111 and pipe 113, leading to the compressor, and a pipe 112, leading to the discharge. In consequence of this arrangement as soon as the cylinder of the pistons 2 or 3, as the case may be, is opened to the discharge these pistons are automatically raised by the small pistons 31 or 30, the cylinders of which are always under pressure. It is needless to describe the hydraulic compressors, which may be of any suitable kind and form no part of the invention.

The clip-former 6 employed forces the clip into the recess formed for this object in the die. It must be noted that the clip is not formed at the expense of the shoe, because the horseshoe being jammed on all sides the clip-former can only in descending engage the projection, which extends beyond the shoe. If two clips are required on the same horseshoe, it is sufficient to roll the'blanks with two projections and mount on the piston 3 of the machine a double clip-former, which will produce two clips.

In the foregoing explanation it is assumed that the rollers furnish bars with bosses or projections for forming the clip. The process may, however, be carried out in other ways.

\Ve declare that what we claim is- 1. A machine for making horseshoes comprising a reciprocatory matrix, two plungers side by side reciprocatory at right angles to the path of motion of said matrix, means operating in conjunction with the matrix to roughly shape a straight blank into the form of a horseshoe as said matrix is projected forwardly under the first plunger, means carried by the first plunger for finishing the form of the shoe, and means carried by the second plunger for shaping the clip, the clip-forming plun'ger acting while the blank is held by the die of the other plunger.

2. A machine for making horseshoes, comprising a reciprocatory matrix, two plungers side by side reciprocatory at right angles to the path of motion of said matrix, means operating in conjunction with the matrix to roughly shape a straight blank into the form of a horseshoe as said matrix is projected forwardly under the first plunger, means carried by the first plunger for finishing the form of the shoe, means carried by the second plunger for shaping the clip, the clip-forming plunger acting while the blank is held by the die of the other plunger, and means for depressing the said plungers. said plungers being depressed successively in the order mentioned as the matrix passes under the first plunger.

3. A machine for making horseshoes comprising a horizontally-reciprocatory matrix, a pair of vertically-operating stamp-hammers reciprocatory at right angles to the path of movement of said matrix, means for bending a straight blank into the form of a horseshoe, means for completing the form of the shoe carried by the first stamp-hammer, means for forming a clip upon the shoe carried by the second stamp-hammer, three cylinders, a piston in each cylinder connected respectively with the matrix and each of the stamp-hammers, and means for successively operating the three pistons in the proper order.

4. In a machine for making horseshoes, the combination of a matrix or die-block adapted to hold the partly-finished shoe and conforming to the proper shape of the bottom thereof, a stamp-hammer cooperating therewith and adapted to finish the outer form of the shoe, a clip-former opposite the toe of the shoe when under said hammer and pivoted at a point to the rear of and over the shoe and means for depressing said clip-former, while said shoe is compressed by the hammer.

5. In a machine for making horseshoes, the combination of a matrix or die-block adapted to hold the partly-finished shoe and conforming to the proper shape of the bottom thereof, a stamp-hammer cooperating therewith and adapted to finish the form of the shoe, a clip-former opposite the toe of the shoe when under said hammer and pivoted at a point in the rear of and over the shoe, means for depressing said clip-former while said shoe is ee1,21e

compressed by the hammer, and a block 18 carrying punches passing through holes in the stamp-hammer opposite the position of the nail-holes in the shoe, said block 18 being connected to said clip-former and normally raised, whereby the holes are punched simultaneously with the formation of the clip and while the shoe is still compressed by the hammer.

6. In a machine for making horseshoes, the combination of a matrix or die-block adapted to hold the partly-finished shoe and conforming to the proper shape of the bottom thereof, a stamp-hammer cor'iperating therewith and adapted to finish the outer form of the shoe when under said hammer, a clip-former pivoted at a point to the rear of and over the shoe, means for depressing said clip-former while said shoe is compressed by the hammer, pistons connected with the matrix, hammer, and clip-former, each respectively. and means for successively operating the said pistons in both directions, first to move forward the matrix, next to depress the hammer, and then to depress the clip-former, then in succession to raise the clip-former, raise the hammer and retract the matrix, in the order mentioned.

7. In a machine for making horseshoes, the combination of a slide L, a matrix or die-block 7 mounted thereon, astamp-hammer 5 having a die formed on its face for cooperating with said matrix, fixed plates 1st for holding the front of the shoe, two movable lateral plates 11, and means operated by the descent of said hammer 't'or slmultaneously compressing the said lateral plates laterally upon the shoe for shaping and holding the same.

8. A machine for making horseshoes comprising a horizontally-reciprocatory matrix, a pair of vertically operating stamp-hammers reciprocatory at right angles to the path of movement of said matrix, means for bending a straight blank into the form of a horse' shoe, means for completing the form of a shoe carried by the first stamp-hammer, and means for forming a clip upon the shoe carried by the second stamp-hammer.

9. In a machine for making horseshoes, the combination of a slide 4, a matrix or die-block 7 mounted thereon, a stamp-hammer 5 having a die formed on its face for cooperating with said matrix, fixed plates l k for holding the frontof the shoe, two movable lateral. plates 11, wedges 1O operated by the descent of said hammer for simultaneously compressing the plates 11 laterally upon the shoe for shaping and holding the same, and springs for withdrawing the lateral plates 11 away from the shoe When the same are no longer pressed up by the said wedges.

In witness whereof we havehercunto signed our names, this 18th day of October, 1902, in the presence of two subscribing witnesses.

GEORGES GHEHET. GHRISTOPHE SIMON.

Witnesses:

IVALTHER HARTMANN, EDWARD P. MAoLEAN. 

